ADDER X-SC Manual de usuario descargar pdf (Pagina 56)

56 CHAPTER 1. INTRODUCTION TO THE ALLIANCE TOOLS

Table 1.26: Options Available for the VASY Tool.

Option Description

-D

Sets Debug mode on. As option [Level] and [File] could be given.

-V

Verbose mode on. Each step of the analysis is displayed onn the standard output.

-I

Speciﬁes the VHDL input format such as Alliance VHDL format vbe, vst or industrial

VHDL format vhd or vhdl.

-H

In a structural description, all model of instances are recursively analyzed (By default VASY

analyzes only models with generic parameters). The leaves cells are deﬁned by a ﬁle called

CATAL.

-P

Speciﬁes a ’ﬁle.pkg’ containing a list of logical and physical package name.

-v

Drives an equivalent description in Verilog format.

-a

Drives an equivalent desc ription in Alliance VHDL format vbe and/or vst. We can note

that with this option, all arithmetic operators are expanded in an equivalent set of boolean

expressions, because these operators don’t belong to the Alliance VHDL subset.

-s

Drives an e quivalent VHDL description (with the extension .vhd) accepted by most of

industrial synthesis tools.

-r

-o

Authorizes to overwrite existing ﬁles.

-i

Drives initial signal values (taken into account only with option -s).

-p

Adds power supply connectors (vdd and vss). Usefull option to enter in Alliance.

-S

Uses Std logic instead of Bit (taken into account only with option -s).

-C

When the size of the adder is greater or equal to num a Carry Look Ahead adder is generated,

instead of a Ripple Carry adder (taken into account only with option -a).

-E

Comparators are expanded in an equivalent set of boolean expressions, when their size is

greater than num (taken into account only with option -a).

-L

A ﬁle .lax (see lax(5) for details) is generated. This ﬁle contains the list of all signals that

must be kept during the synthesis step, using b oom. (taken into account only with option

-a).

-B

Drives a .bo om ﬁle (with -a only).

Table 1.27: Formats handled by the X2Y Tool.

Option Description

al ALLIANCE netlist

ALLIANCE layout

cct

HILO netlist

VTI layout

edi

EDIF netlist or layout

fne VTI extracted netlist

hns VTI netlist

spi, sp, cir

SPICE netlist

vlg

VERILOG netlist

vst

VHDL netlist

1.29 XFSM

This is a X-window graphical tool to visualize FSMs (Finite State Machines). It has no manual pages and no

options.

1.30 XPAT

The XPAT (X window PAT ﬁle visualizer) tool is just a visualizer that let’s see the .pat ﬁles used by ASIMUT

or generated by it. We use it with the following command.

% xpat [-l file_name] [-xor] [-install] [-force]

The options available in XPAT are shown in Table 1.28.

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 86 87

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